<template>
  <div class="login-container">
    <div class="login">
      <div class="title">视频智能分析检索平台</div>
      <div class="top-seperator"></div>
      <el-row class="login-form">
          <div class="login-logo" >
            <img class="login-logo-img" src="../assets/logo/login-logo.png"  />
          </div>
          <div class="login-seperator" >
             
          </div>
          <div class="login-form-container">
            <el-form ref="loginForm" :model="loginForm" :rules="loginRules" >
              <el-form-item prop="username">
                <el-input
                  v-model="loginForm.username"
                  type="text"
                  auto-complete="off"
                  placeholder="请输入账号"
                >
                  <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
                </el-input>
              </el-form-item>
              <el-form-item prop="password">
                <el-input
                  v-model="loginForm.password"
                  type="password"
                  auto-complete="off"
                  placeholder="请输入密码"
                  @keyup.enter.native="handleLogin"
                >
                  <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
                </el-input>
              </el-form-item>
              <el-form-item prop="code" v-if="captchaEnabled">
                <el-input
                  v-model="loginForm.code"
                  auto-complete="off"
                  placeholder="验证码"
                  style="width: 63%"
                  @keyup.enter.native="handleLogin"
                >
                  <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
                </el-input>
                <div class="login-code">
                  <img :src="codeUrl" @click="getCode" class="login-code-img"/>
                </div>
              </el-form-item>
              <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
              <el-button
                  :loading="loading"
                  size="medium"
                  type="primary"
                  style="width:100%; margin-top: 0px;"
                  @click.native.prevent="handleLogin"
                >
                  <span v-if="!loading">登 录</span>
                  <span v-else>登 录 中...</span>
                </el-button>
            </el-form>
          </div>
      </el-row>
    </div>
   
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2023 武汉移动互联工程技术研究院 All Rights Reserved.</span>
    </div>
  </div>
</template>

<script>
import { getCodeImg } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from '@/utils/jsencrypt'

export default {
  name: "Login",
  data() {
    return {
      codeUrl: "",
      loginForm: {
        username: "admin",
        password: "admin123",
        rememberMe: false,
        code: "",
        uuid: ""
      },
      loginRules: {
        username: [
          { required: true, trigger: "blur", message: "请输入您的账号" }
        ],
        password: [
          { required: true, trigger: "blur", message: "请输入您的密码" }
        ],
        code: [{ required: true, trigger: "change", message: "请输入验证码" }]
      },
      loading: false,
      // 验证码开关
      captchaEnabled: false,
      // 注册开关
      register: false,
      redirect: undefined
    };
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true
    }
  },
  created() {
    //this.getCode();
    this.getCookie();
  },
  methods: {
    getCode() {
      getCodeImg().then(res => {
        this.captchaEnabled = res.data.captchaEnabled === undefined ? true : res.data.captchaEnabled;
        if (this.captchaEnabled) {
          this.codeUrl = "data:image/gif;base64," + res.data.img;
          this.loginForm.uuid = res.data.uuid;
        }
      });
    },
    getCookie() {
      const username = Cookies.get("username");
      const password = Cookies.get("password");
      const rememberMe = Cookies.get('rememberMe')
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
      };
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true;
          if (this.loginForm.rememberMe) {
            Cookies.set("username", this.loginForm.username, { expires: 30 });
            Cookies.set("password", encrypt(this.loginForm.password), { expires: 30 });
            Cookies.set('rememberMe', this.loginForm.rememberMe, { expires: 30 });
          } else {
            Cookies.remove("username");
            Cookies.remove("password");
            Cookies.remove('rememberMe');
          }
          this.$store.dispatch("Login", this.loginForm).then(() => {
            this.$router.push({ path: this.redirect || "/" }).catch(()=>{});
          }).catch(() => {
            this.loading = false;
            if (this.captchaEnabled) {
              this.getCode();
            }
          });
        }
      });
    }
  }
};
</script>

<style rel="stylesheet/scss" lang="scss">
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/login_bg.webp");
  background-size: cover;
}
.login{
  width: 630px;
  height: 320px;
  margin-top: 50px;
  padding: 20px 20px 20px 20px;
  border-radius: 15px;
  background: #ffffff;
  box-shadow: 0 0 8px 8px #999;
  box-sizing: border-box;

  .title {
    height: 40px;
    margin-top: 0px;
    text-align: center;
    color: #075fa8;
    font-size: 25px;
    font-family: "微软雅黑";
    font-weight: bold;
  }

  .top-seperator {
    display: block;
    width: 120px;
    height: 4px;
    background-color: #075fa8;
    margin:0 auto;
  }
  
  .login-form {
    height: 80%;
    margin-top: 15px;
    display: flex;
    justify-content: center;
    align-items: center; 
    .login-logo{
      position: relative;
      width: 30%;
      height: 100%;
      overflow: hidden;
      .login-logo-img{
        width: 60%;
        height: 70%; 
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%,-50%); 
        object-fit: contain;
      }
    }

    .login-seperator{
      height: 90%;
      width: 2px;
      background-color: #999;
    }

    .login-form-container{
      height: 100%;
      width: 60%;
      margin-left: 40px;
      margin-top: 15px;
      
    }

    .el-input {
      height: 38px;
      input {
        height: 38px;
      }
    }
    .input-icon {
      height: 39px;
      width: 14px;
      margin-left: 2px;
    }
  }
  
}



.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 38px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}
.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 20px;
  width: 100%;
  text-align: center;
  color: #075fa8;
  font-family: Arial;
  font-size: 16px;
  letter-spacing: 1px;
}
.login-code-img {
  height: 38px;
}
</style>
